Full Stack Automation Engineer
GigaBrands • Rio de Janeiro, Southeast, Brazil
**Role & seniority: ** Tech/Software Engineer (production LLM + RAG), 3+ years experience (not specified as senior/principal)
**Stack/tools: ** TypeScript, Node.js, React/Next.js, PostgreSQL, CI/CD, n8n, Claude Code; AI/LLM: Claude/OpenAI (deployed), RAG (embeddings, chunking, retrieval); Nice: AWS Lambda, Terraform, Docker, Amazon SP-API, Slack bots, Playwright
**Top 3 responsibilities: **
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Build and iterate AI pipelines (classification, response generation, sales intelligence, lead qualification, trend/content workflows)
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Improve RAG quality (chunking, re-ranking, hybrid search, vector DB maintenance) and integrate tool/function calling for real-time data
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Ensure reliability/performance via quality gates, debugging model errors, and optimizing LLM cost/latency plus observability/tracing and dashboards
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Must-have skills:
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Production LLM experience (Claude/OpenAI live systems)
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RAG experience: embeddings, retrieval, chunking, context handling
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3+ years TypeScript/Node.js
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Strong React fundamentals (architecture/state/performance)
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PostgreSQL (queries, migrations, indexing, optimization)
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API integrations (REST, OAuth, webhooks)
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Linux server experience (SSH, deployments, log debugging)
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Nice-to-haves:
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Multi-agent orchestration; deeper Anthropic Claude expertise (system prompts, tool use)
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Vector DB tech (pgvector/Pinecone), Slack API/bots
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Ad platform APIs (Meta/Google/LinkedIn),
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Full Description
WHO WE ARE We've built an AI-native internal platform that powers every aspect of our Amazon brand management business. AI isn't a feature — it's the backbone.
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LLMs classify and respond to inbound communications
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AI generates pre-call intelligence briefs from raw enrichment data
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A RAG system feeds context into every generation pipeline
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An AI checkpoint system audits all generated content against quality gates
The platform is already live and scaling fast
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17+ background services
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130+ frontend pages
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214 backend services
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184 database tables
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Dozens of autonomous AI pipelines
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OUR CORE VALUES
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Be A Moral Human
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Serve a higher purpose. Everything we build and every decision we make is grounded in doing the right thing.
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Improve 1% Daily
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Strive for 1% better every day. Consistent, compounding improvement is how we build world-class systems and teams.
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Extreme Ownership
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Own your actions. No excuses, no hand-offs as a crutch. If it's in your world, it's your responsibility.
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Solve Problems, Don't Create Them
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Every challenge has a solution. Don't slow down the team by creating new problems — come with answers, not blockers.
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Make an Impact
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Focus on meaningful results. We measure success by the difference we make, not the hours we log.
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Fail Fast & Fail Forward
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Don't be afraid to fail. Take that failure, learn from it, and move forward stronger. Every failure is a lesson.
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WHAT YOU'LL BUILD & SCALE
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AI Communication Pipelines
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Classify inbound messages by category, intent, urgency, and tone
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Generate contextual responses using enrichment data
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Implement and tune human approval gates
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AI-Powered Sales Intelligence
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Transform raw enrichment data into structured pre-call briefs
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Generate backgrounds, pain hypotheses, talking points, and rapport hooks
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RAG System
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Maintain and improve the vector database with embeddings
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Implement markdown-aware chunking strategies
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Build async ingestion workers and semantic search APIs
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Trend Intelligence Engine
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Process RSS feeds, social media, video platforms, and search trends
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Generate reports, forecasts, and content drafts
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Run autonomously on scheduled jobs
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Content Quality Pipeline
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Extend the multi-agent system (outline → audit → generate)
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Maintain binary quality gates (PASS/FAIL with citations)
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Support multiple content formats across the pipeline
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Automated Lead Qualification
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Enrich leads with product data and market insights
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Build AI scoring and qualification grading systems
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Generate automated audit reports
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AI Executive Assistant
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Build and maintain Slack-integrated operations
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Automate scheduling workflows
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Triage and respond to email autonomously
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DAY-TO-DAY RESPONSIBILITIES
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Build and improve AI pipelines for client performance insights
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Improve RAG retrieval quality (re-ranking, chunking, hybrid search)
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Add tool use / function calling for real-time data in LLM pipelines
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Debug classification errors and improve model accuracy
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Optimize LLM costs, latency, and performance
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Build dashboards for AI metrics and usage monitoring
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Add observability and tracing to AI pipelines
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Expand content quality systems to new formats and use cases
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TECH STACK
Core: TypeScript · Node.js · React / Next.js · n8n · PostgreSQL · CI/CD · Claude Code
Nice to have: AWS Lambda · Terraform · Docker · Amazon SP-API · Slack Bots · Playwright QUALIFICATIONS
Required
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Production LLM experience — Claude or OpenAI deployed in real, live systems
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RAG system experience — embeddings, retrieval, chunking, and context handling
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3+ years TypeScript / Node.js
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Strong React skills (component architecture, state management, performance)
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PostgreSQL — queries, migrations, indexing, query optimisation
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API integrations — REST, OAuth, webhooks
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Linux server experience — SSH, log analysis, debugging, deployments
Strong Pluses
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Multi-agent LLM systems and orchestration
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Anthropic Claude expertise (prompt engineering, tool use, system prompts)
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Vector search and embeddings (pgvector, Pinecone, or similar)
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Slack API and bot development
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Ad platform APIs (Meta, Google, LinkedIn)
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LLM observability — cost tracking, tracing, monitoring
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Amazon / eCommerce experience
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AI-assisted dev tools (Cursor, Claude Code, etc.)
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WHAT WE OFFER
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Competitive salary based on experience
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High-impact role with genuine ownership over systems that matter
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Full time remote role
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Work directly on one of the most advanced AI-native business platforms in the Amazon space
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A team that moves fast, thinks big, and holds a high bar
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PTO after successfully completed probationary period
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WHAT WE OFFER
-
Competitive salary based on experience
-
High-impact role with genuine ownership over systems that matter
-
Full time remote role
-
Work directly on one of the most advanced AI-native business platforms in the Amazon space
-
A team that moves fast, thinks big, and holds a high bar
-
PTO after successfully completed probationary period